| Autor: |
Guerra, Denis Lima, Airoldi, Claudio, Lemos, Vanda Porpino, Angélica, Rômulo Simões, Viana, Rúbia Ribeiro |
| Jazyk: |
portugalština |
| Rok vydání: |
2008 |
| Předmět: |
|
| Zdroj: |
Química Nova, Volume: 31, Issue: 2, Pages: 353-359, Published: 2008 |
| Popis: |
The aim of this investigation is to study how Zr/Ti-PILC adsorbs metals. The physico-chemical proprieties of Zr/Ti-PILC have been optimized with pillarization processes and Cu(II), Ni(II) and Co(II) adsorption from aqueous solution has been carried out, with maximum adsorption values of 8.85, 8.30 and 7.78 x10-1 mmol g-1, respectively. The Langmuir, Freundlich and Temkin adsorption isotherm models have been applied to fit the experimental data with a linear regression process. The energetic effect caused by metal interaction was determined through calorimetric titration at the solid-liquid interface and gave a net thermal effect that enabled the calculation of the exothermic values and the equilibrium constant. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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